1. technology and computing
2. hardware
3. computer networking
4. router

BLE232
Manual
BLE232
BLE232: Manual
Copyright © 2014 taskit GmbH
All rights to this documentation and to the product(s) described herein are reserved by taskit GmbH.
This document was written with care, but errors cannot be excluded. Neither the company named above nor the seller assumes legal liability
for mistakes, resulting operational errors or the consequences thereof. Trademarks, company names and product names may be protected
by law. This document may not be reproduced, edited, copied or distributed in part or in whole without written permission.
This document was generated on 2014-01-28T09:17:23+01:00.
BLE232
Table of Contents
1. Overview ......................................................................................................................
1.1. BLE232 overview ..............................................................................................
2. Features .......................................................................................................................
3. Hardware description .................................................................................................
3.1. Technical characteristics ...................................................................................
3.2. Serial interface and power supply schematics ..................................................
3.3. BLE232 printed circuit board ...........................................................................
4. Register description ....................................................................................................
4.1. Peripheral characteristic description ................................................................
4.2. BLE232 configuration via serial port ................................................................
5. Dimensions ..................................................................................................................
5.1. BLE232 board and housing dimensions ............................................................
6. Technical data .............................................................................................................
6.1. Technical data ...................................................................................................
6.2. Assignment of the serial interface ....................................................................
iii
1
1
2
3
3
3
4
5
5
6
8
8
9
9
9
BLE232
List of Figures
3.1.
3.2.
4.1.
4.2.
4.3.
5.1.
Serial interface and power supply schematics ........................................................
BLE232 printed circuit board ..................................................................................
BLE232 configuration via serial port .......................................................................
BLE232 configuration main menu ...........................................................................
BLE232 configuration menu structure .....................................................................
BLE232 board and housing dimensions ...................................................................
iv
3
4
6
6
7
8
BLE232
List of Tables
3.1.
4.1.
6.1.
6.2.
BLE232
BLE232
BLE232
BLE232
technical characteristics .............................................................................
peripheral characteristic description .........................................................
technical data .............................................................................................
assignment of the serial interface ..............................................................
v
3
5
9
9
Overview
1. Overview
1.1. BLE232 overview
The BLE232 is an interface adapter converting RS232 communication to Bluetooth 4.0.
It has been designed to transfer state messages. It is not especially suitable to transfer
streams or large files, although it works for small files or less volume streams.
It is available as Bluetooth central or peripheral device. It can be used to connect to any
other Bluetooth device such as a smartphone or a Bluetooth sensor that supports Bluetooth
4.0 or two can wirelessly bridge two RS232 ports. It can be used with Windows or Linux
operating systems or directly with microcontrollers.
The BLE232 is available as couple for ready-to-use as BLE232-Central or BLE-Peripheral,
otherwise the modules need to be paired.
The BLE232 has a programming and configuration interface. The configuration can be
done via the Bluetooth characteristics settings of your operating system or directly via the
serial interface (BLE232-peripheral) or only via the serial interface (BLE232-central)
If necessary and desired the module's microcontroller may be programmed by the user
directly.
1
Features
2. Features
• RS232 interface
• Bluetooth 4.0 central or peripheral connectivity
• Powered via serial port or externally
• Configuration via serial port
• Wireless serial bridging
• Connects serial port to smartphones, sensors and other Bluetooth devices that supports
Bluetooth 4.0
• Programming interface
2
Hardware description
3. Hardware description
3.1. Technical characteristics
Device characteristic
Value
RS232 lines
RX, TX
RS232 baudrates
9600, 19200, 38400, 57600, 115200
RS232 data bits
8
RS232 parity
None, Even, Odd
RS232 stop bit
0, 1
RS232 flow Control
XON/XOFF
RS232 buffer
512 Bytes
Bluetooth mode
Central, Peripheral
Bluetooth range
20m - 50m
Bluetooth max transfer rate
8 kB/s
Current consumption
10 mA
Table 3.1. BLE232 technical characteristics
3.2. Serial interface and power supply schematics
The BLE232 can be powered internally via the serial line. The signals DCD, DSR, RST,
CTS, DTR and RI can be used as power supply.
The BLE232 can as well be powered by an external power source between 3 to 16 Volt.
Figure 3.1. Serial interface and power supply schematics
3
Hardware description
3.3. BLE232 printed circuit board
Figure 3.2. BLE232 printed circuit board
4
Register description
4. Register description
4.1. Peripheral characteristic description
Description
Data type
Units
Default
Permissions
Size
128Bit UUID: 912ffff0—3d4b-11e3-a760-0002a5d5c51b
BLE232 service
UUID
128Bit UUID: 912ffff1—3d4b-11e3-a760-0002a5d5c51b
Serial
interface
port unit8
Write, Notify
128Bit UUID: 912ffff2—3d4b-11e3-a760-0002a5d5c51b
Serial
Config
port unit8
Bit0-Bit2
0x04
Read, Write
1 Byte
Read, Write
20 Bytes
Read, Write
20 Bytes
0: 9600
1: 19200
2: 38400
3: 57600
4: 115200
Bit3
0: OFF
1: ON
Bit4-Bit5
0: NO
1: EVEN
2: ODD
Bit6
0: ONE
1: TWO
128Bit UUID: 912ffff3—3d4b-11e3-a760-0002a5d5c51b
Note
String
128Bit UUID: 912ffff4—3d4b-11e3-a760-0002a5d5c51b
Device name
String
BLE232
Table 4.1. BLE232 peripheral characteristic description
5
Register description
4.2. BLE232 configuration via serial port
Open a serial console program to change the settings of the BLE232 module. After power
up, you have a certain time to go into the setting menu (default: 500ms). At this time
should you go into the setting menu with three plus signs (+++).
Figure 4.1. BLE232 configuration via serial port
Press any key to continue. Navigate through the menu using the number keys. In this
menu you can change settings of the serial port, Bluetooth low energy, idle timeout and
debug report. The changes are stored in the device's internal flash memory.
Figure 4.2. BLE232 configuration main menu
6
Register description
Here you can see the structure of the menus.
Figure 4.3. BLE232 configuration menu structure
7
Dimensions
5. Dimensions
5.1. BLE232 board and housing dimensions
Figure 5.1. BLE232 board and housing dimensions
8
Technical data
6. Technical data
6.1. Technical data
Radio transmission
Operation frequency range
2402 - 2480 MHz
Channel spacing
2 MHz
Output power
0 dBm
Modulation
GFSK, MSK
Connections
RS232
9-pin D-sub connector, male or female
Antenna
Chip-Antenna
Power supply voltage range
3 to 16 Volt
Internal power source
Via the serial line
External power source
On board
Bluetooth
Version
4, Bluetooth low energy
Protocols
Bluetooth low energy protocol stack
Bluetooth profile
Generic Access, Service Discovery
Role
Peripheral, Central
Dimensions
Circuit board
17x21x1.55mm
Housing
ca. 25x41x16mm
Table 6.1. BLE232 technical data
6.2. Assignment of the serial interface
Abbreviation
Pin Nr.
Direction male
Direction female
TxD
3
Output
Input
RxD
2
Input
Output
RTS
7
Power
Power
CTS
8
Power
Power
DSR
6
Power
Power
GND
5
-
-
DCD
1
Power
Power
DTR
4
Power
Power
RI
9
Power
Power
Table 6.2. BLE232 assignment of the serial interface
9